Automatic honing-machine.



T. C. SHEEHAN.

AUTOMATIC HONING MACHINE.

APPLICATION man ocT.|,191o.

Patented Dec. 28, 1915.

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3 SHEETS-SHEET 1.

T. C. SHEEHAN.

AUTOMATIC HONINGMACHINE.

APPLICATION FILED 00T. l, 1910.

Patented Dee. 28, 1915.

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3 SHEETS-SHEET 2.

T. C. SHEEHAN.

AUTOMATIC HONING MACHINE.

APPLICATioN FILED oon-1, 1910.

Patented Dec. 28, 1915.

3 SHEETS-SHEET 3.

ufr4 sas PATENT clarion.

THOMAS C. SHEEI-IAN, F JERSEY CITY, NEW ERSEY, ASSIGNOR 'IO .DURHAM DUPLEX RAZOR COMPANY, or NEW YORK, N. Y., A

ACORPORAIION OF NEW YORK.

AUTOMATIC HONING-IVIACHINE.

Specification of Letters Patent.

Patented nec. as, i915.

Application led October 1,1910. Serial No. 584,804..

Improvement in Automatic Honing-Machines, of which the following is a specifica'- tion.

machines was. satisfactory, but. the cost of production was excessive, first, because the necessity for the employment of two attendants for each machine increased the labor cost out of proper proportion to the capacity of the machine, and second, because the attendants did not always handle the blades with, the great care necessary to insure perfect work, and the percentage of defective work was excessive, resulting inI increased cost. Thin interchangeable razor blades of the type handled in .these machines, are sold in large quantities and ata very low price, and it is important that their cost of production be kept as low as consistent with good work, and that the quality of the work as a whole be improved.

It is one of the objects of the present in.- vention,'therefore, to produce a machine in which the blades are automatically handled in such a way as to insure the necessary protection to the delicate edges thereof, there; by eliminating defective work.

Another Object is the production of a machine in which blades are introduced in bulk, preferably in the form of a stack, and thereafter automatically fed to the forwarding mechanism of the machine, and in which the blades, after honing, are automatically stacked, thereby eliminating the necessity for two attendants, or evenone, attendant for each machine, thus reducing the cost of production. n

Still another object is the production of a county of Hudson, and State of. New Jersey, have invented a new and useful;

This. invention .relates to an automatic.

machine of the above generalfcharacter in which the automatic-feeding and stacking vdevices are simple and inexpensive, yet efficient and notJ liable to injury.

Vith these and other objects not specificallymentioned in view,'the invention consists in certain constructions and combinations wlhich willv be hereinafter `fully described and then specifically pointed out in the claims hereuntovappended.-

In the accompanying drawings which forma part of this specification and in which like characters of reference indicate the same parts, Figure l is a plan view of a -machine constructed in accordance with the invention, Fig. 2 is a side elevation of the structureshown in Fig. l, Fig. 3 is a plan view, on an enlarged scale, of the automatic blade feeding device used in the machine shown in Figs. l and 2, Fig. 4 is a side elevation of the structure shown in Fig. 3, Fig. 5 is a sectional view taken on the line 5 in Fig.4, Fig.`6 is a sectional view `on the line 6 6 in Fig. 5, Fig. 7 is a plan view, on an enlarged scale, of the stacking device shownin Figs. 1 and 2, Fig. 8 is a side elevation of the structure -shown in Fig 7 looking in the direction of the arrow 8, and Fig. 9 is a sectional view on the line 9 9 in Fig. 8.

In carrying the` invention into effect, there is provided a hone, or seriesvof hones, and blade forwarding mechanism for advancing blades into the range of action of the hone or hones, and thence to a delivery point, and both these mechanisms may vary within wide limits.

In the device selected to illustrate the invention, which it isto be understood represents only one of many structures by means of which the invention may be carried into effect, there is provided 'a frame 1 upon which is mounted la `table 2 rectangular in form and supporting a series of honing wheels 3 and coperating guides 4. The honing wheels are driven by means of belts 5 from an overhead line shaft not shown. In, and at one end of, the frame l, is journaled a power shaft 6 driven by a belt passing over a pulley 7 on the shaft and over a pulley on an overhead shaft not shown.

worm wheel l0, and the wo'rm 9 being in mesh with a Worm wheel 11. The wheel 10 is fast on an upright shaft 12 which carries, at its upper end, a turret 13. Similarly, the wheel 11 is fast on an upright shaft 14 which carries, at its upper end, a turret 15. At the opposite end of the table are two turrets 16 and 17 rotatably mounted upon two studs 18 and 19 fast in the table 2. A steel belt 20, provided with a. series of sets of pins 21 adapted to engage perforations in blades, runs over the turrets 13 and 16. Similarly, a steel belt 22 runs over the turrets 15 and 17. These belts run together in a horizontal pathfrom a point near the right or feeding end of the machine to a point near the left or delivey end of the same, and are adapted to coperate to forward a blade or series of blades from one point to the other, into, and thence to a delivery point beyond, the range of action of the honing wheels.

The structure so far described is substantially the same as the structure disclosed in detail in my co-pending application filed lune 30, 1910, Serial No. 569,713, and reference to said application is made for a full detailed description ofthe same.

A more detailed description of that part of the structure so far describedis deemed unnecessary for a full understanding of the present invention, and is therefore omitted in the interest of brevity and clearness.

In order that blades may be placed in the machine in bulk, without danger of injury to their cutting edges, and in order that an attendant may serve several like machines, there is provided an automatic device for presenting blades to the forwarding mechanism above described, and this device may vary within wide limits. In the best constructions, this device will include a traveling-member operating to advance al stack of blades toward the forwarding mechanism, so that the blades may one by one be engaged by the forwarding mechanism and advanced to the honing wheels. As shown, there is provided a support or arbor 23, Figs. 3 to 6 inclusive, which is adapted to engage a part of a blade 4removed from the cutting edge; that is to say, a perforation in the blade. A stack of perforated blades, indicated in Figs. 4 and 5 in position on the support 23. It is to be understood, however, that when blades other than perforated thin double edged interchangeable blades are to be honed, a support of a different form will be used, because then there will be no `necessity for keeping all the edges of the blades out of contact with anything liable to injure the same.l The support 23 is pivoted at 24 to a bracket 25 mounted on the table 2 adjacent the forwarding mechanism. This pivotal mounting of the support enables an attendant to swing the support to an upright position. When the support is held in this '32 in which the support 23 lies.

marked B, are

-cessively to the upright position, the attendant can easily place a stack of blades thereon, and then swing the support down to its normal position as shown. lVhen the support lies in its normal position it rests upon a ledge 26 formed on the bracket 25, and is there held by means' of a clamping device. This clamping device includes an arm 27 which is pivoted at 28 to the bracket and overlies the support 23. The free end of the arm 27 terminates in a fork 29'ada pted for engagement with a swinging clamp screw 30` of well known construction. z p

For the purpose of advancing a blade, or stack of blades, along the support toward the forwarding mechanism, there is provided a plunger 31 having a central aperture The advancing movement of this plunger may be produced by any suitable mechanism. As shown, however, a pair of rods 33 are pivotally connected with the plunger at 34, one on either side of the support 23. lThe rods 33 extend rearwardly beyond the bracket 25 and rest upon the ledge 26 before referred to. The rear ends of the rods 33 engage al crosshead 35` provided with sockets into which the ends of the rods are easily slipped. This crosshead is fast on one end of a belt 36 which passes over a pulley 37 supported by a bracket 38 secured to the bracket 25. To

the opposite end o f the belt 36 is secured a weight 39. By an inspection of Fig. 4, it will be readily understood that the weight operates to move the plunger 31 toward the forwarding mechanism, and by an inspection of Fig. 5, it will be readily understood that one side'of the stack of blades is advanced ahead of the other side. The reason for this will be presently explained. When it is desired to place a new upon the support, the crosshead 35 is first slipped out of engagement with the rear ends of the rods 33, thus removing all pressure of the plunger upon the blades already on the support, if there be any. The bar 27 is then unclamped sothat the support may be swung to an upright position. After the stack of blades is placed upon the support, the support is swung down to its normal position, clamped there, and the crosshead again placed in engagement with the rear ends of the rods. cally to present the blades of the stack sucforwarding mechanism. Immediately in front of the delivery end of the support 23 is a guide block 40 provided with a channel through which the belt 20 runs. This block is supported -by a bracket 41 secured to the table 2. Upon one end of this guide block 40 is secured a small block 42 which carries a linger 43 extending into thepath `of movement of one side of the l stack of blades The device then works automatiarbor shaped to iit by the honing wheels,

Villustrate the invention,

'foremost blade and drags that blade along with it. As the blade caughtby the pin is forwarded thereby, it passes between the belt and a second guide 44, channeled to receive it. This guide 44 is long enough to retain the blade on the pin and belt until the belt 22 begins to coperate with the belt 20v to forward the blade to the honing wheels. The guide 44 is supported by a bracket 45 secured to the table 2. After the blade passes out of thechannel in the guide 44, it is forwarded to the honing wheels and thence to a delivery point beyond the honing wheels precisely as it is forwarded in the machine disclosed in my earlier application above referred to.

For the purpose of preventing injury to the keen edges of the blades operated upon and for the purpose of permitting an attendant to devote a part of his time to other similar machines, there is provided an automatic stacking device to which the forwarding mechanism delivers blades, and this device may vary within wide limits. Its construction will depend largely upon the character of the blades honed in the machine. In the machine selected to however, thin, double edged, blades having an elongated perforation, are honed. The stacking device shown, therefore, includes a member adapted to engage a part of a blade removed from its cutting edges. Such a member, marked 46, Figs. 7 to 9 inclusive, consists in an the perforations in the blades handled in the machine. This arbor is pivoted at 47 to a block 48 mounted onl a two-part arm 49, 50, which is supported by the table 2. The arbor 46`normally rests upon a ledge 51 formed on the block 48, and is held in position by a bar 52 pivoted at 53 to the block 48. The free end of the bar 52 terminates in a fork 54 engaged by a clamp screw 55 of well known construction. By an inspection of Fig. 8, it will be noted that the arbor lies at an angle to the horizontal path of the forwarding mechanism or belts 20 and 22. This is to permit blades slipped over the end of the arbor to slide down toward a stop A guide 57, provided with a channel 58, is mounted on the table 2 adjacent the delivery end of the forwarding mechanismk and the free end of the arbor 46. This guide is arranged to coperate with lthe belt 20 in advancing a blade, from the point wherethe belt 22 leaves the belt 20,v to the free end of the turret 16 over As a blade is advanced in the guide, it is l with 56, and there. become stacked.y

the arbor 46. The guide vchannel 58 .is curved concentrically with the periphery of which the belt 20 runs.

sprung out of its normal' flat shape and forced to take the curved shape of the chan? nel. As the blade leaves the delivery end of the channel, its tendency is to resume its normali-lat shape. Its leading end strikes the rounded corner 59 of the arbor and is forced along the end of the arbor. When the perforation in the blade reaches the end of the arbor, the blade snaps over the end of the arbor and slides down the same above preceding blades, thus forming a stack on the arbor. When the stack on the arbor equals the capacity of the same, the arbor is unclamped and swung to an uprightposition and the stack of blades removed; after which the arbor is returned to its normal position and clamped.

In view of the foregoing, a detailed descrlption of the operation of the device is y deemed unnecessary and is therefore omitted in the interest of brevity.

Changes and variations may be made in the structure by means of which the invention is carried into effect. Th/invention,

therefore, is not to be restricted to the prev cise details of the structure shown and de scribed. Furthermore, certain parts of the invention are capable of use independent of other parts, and such independent use is contemplated.

What is claimed is:

' 100 1. In a honing machine, the combination moving a blade along the support to present it to the forwarding mechanism.

3. In a honing machine, the combination bladeforwarding mechanism, of an automatic device including a plunger adapted to engage the rear side of a blade to present it to the forwarding mechanism and a pair of rods secured to the plunger and extending rearwardly, and a weight and connections detachably engaging the rear ends of the rods.

4. .An automatic device for'moving blades in a honing machine comprising an elongated support adapted to engage an elongated perforation in a blade, and a traveling plunger for moving the blade along, the support.

' 5. An automatic device for moving blades in a honing machine `comprising a support adapted to engage a perforation in a blade, and a traveling plunger for moving the blade lalong the support, said plunger having an operating face shaped to advance one side of the blade ahead of the other.

6. ln a honing machine, the combination with blade forwarding mechanism, of an automatic stacking warding mechanism delivers blades, said device including an arbor adapted tofit' and engage an elongated perforation in a blade.

7. In a honing machine, the combination with blade forwarding mechanism, of -an automatic stacking device to which the forwarding mechanism delivers blades said device including an arbor shaped to lit and engage a perforation in al device to which the forblade and lying at an angle to the path of the forwarding mechanism.

8. In a honing machine, the combination with blade forwarding mechanism, of an automatic stacking device to whichv the forwarding mechanism delivers blades said device including a movable arbor shaped to fit and adapted to engage a perforation in a blade and lying at an angle to the path of the forwarding mechanism, and a clamp for locking the arbor in a fixed position adjacent the forwarding mechanism.

ln testimony whereof, I have signed my name to this specification in theV presence of two subscribing witnesses.

` THOMAS C. SHEEHAN. Witnesses:

JOHN E. DREW,

SYDNEY' I. PREscorr'r. 

